These items are hard to find or very expensive in Bogota
Electronics (leave large electronics at home, but bring iPods, cameras, laptops, etc.)
Designer items (clothing, cosmetics, perfume, sunglasses)
Brand name items
Gourmet cheeses (especially cheddar)
Really good gum
Nice bedding (if you are moving here)
Cash exchange- bring ATM and credit cards!
If you are coming from Canada or United States, you don't need an adapter. Colombia is 110 Volts, type A plug.